122101220999 has 16 divisors (see below), whose sum is σ = 127497937920. Its totient is φ = 116786396160.

The previous prime is 122101220987. The next prime is 122101221017. The reversal of 122101220999 is 999022101221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 122101220999 - 2³² = 117806253703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122101228999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2454029 + ... + 2503289.

It is an arithmetic number, because the mean of its divisors is an integer number (7968621120).

Almost surely, 2^122101220999 is an apocalyptic number.

122101220999 is a deficient number, since it is larger than the sum of its proper divisors (5396716921).

122101220999 is a wasteful number, since it uses less digits than its factorization.

122101220999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50090.

The product of its (nonzero) digits is 11664, while the sum is 38.

The spelling of 122101220999 in words is "one hundred twenty-two billion, one hundred one million, two hundred twenty thousand, nine hundred ninety-nine".